2012 - JAMB Biology Past Questions and Answers - page 1
1
Which of the following is involved in secondary thickening in plants?
A
Collenchyma and xylem cells
B
Vascular cambium
C
Cork cambium and sclerenchyma
D
Vascular cambium and cork cambium
Ask EduPadi AI for a Detailed Answer
2
An example of a fruit that develops from a single carpel is
A
okro
B
tomato
C
bean
D
orange
Ask EduPadi AI for a Detailed Answer
3
Plant growth can be artificially stimulated by the addition of
A
gibberellin
B
kinin
C
abscisic acid
D
ethylene
Ask EduPadi AI for a Detailed Answer
4
The autonomic nervous system consists of neurons that control the
A
voluntary muscles
B
heart beat
C
tongue
D
hands
Ask EduPadi AI for a Detailed Answer
5
The water cycle is maintained mainly by
A
evaporation of water in the environment
B
evaporation and condensation of water in the environment
C
condensation of water in the environment
D
transpiration and respiration in plants
Ask EduPadi AI for a Detailed Answer
6
Plants of temperate origin can be grown in tropical areas in the vegetation zones of the
A
rain forest
B
guinea savanna
C
sudan savanna
D
montane forest
Ask EduPadi AI for a Detailed Answer
7
Organisms living in an estuarine habitat are adapted to
A
withstand wide fluctuations in temperature
B
survive only in water with low salinity
C
withstand wide fluctuations in salinity
D
feed only on phytoplankton and dead organic matter
Ask EduPadi AI for a Detailed Answer
8
The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the
A
tropical rainforest
B
mangrove swamps
C
gressland
D
montane forest
Ask EduPadi AI for a Detailed Answer
9
Which of the following animals can exist solely on the water they get from food and metabolic reactions?
A
forest arboreal dweller
B
Desert dwellers
C
forest-ground dweller
D
rainforest dwellers
Ask EduPadi AI for a Detailed Answer
10
The most likely first colonizers of a bare rock are
A
mosses
B
ferns
C
lichen
D
fungi
Ask EduPadi AI for a Detailed Answer